CN105916056A - Backlight adaptive regulation method and device - Google Patents
Backlight adaptive regulation method and device Download PDFInfo
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- CN105916056A CN105916056A CN201610293245.7A CN201610293245A CN105916056A CN 105916056 A CN105916056 A CN 105916056A CN 201610293245 A CN201610293245 A CN 201610293245A CN 105916056 A CN105916056 A CN 105916056A
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 23
- 238000005286 illumination Methods 0.000 claims description 30
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 230000004308 accommodation Effects 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 10
- 230000032683 aging Effects 0.000 abstract description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 71
- 210000003128 head Anatomy 0.000 description 34
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000018109 developmental process Effects 0.000 description 1
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- 230000008407 joint function Effects 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/14—Display of multiple viewports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
- H04N5/58—Control of contrast or brightness in dependence upon ambient light
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/0653—Controlling or limiting the speed of brightness adjustment of the illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention discloses a backlight adaptive regulation method. The method comprises: one frame image is obtained at each regular presetting time in the video mode; it is determined whether the first image satisfy a presetting backlight adaptive regulation condition according to the first image obtained at present, the brightness difference value of a second image obtained in the distance current presetting time segment and the number of the white pixel points of the first image; the brightness value of the pixel points in a third image captured in the current environment is obtained by using a camera when the first image satisfies a presetting backlight adaptive regulation condition; and the backlight value of the display screen for displaying a video window area is set based on the brightness value of the pixel points in the third image. The present invention further discloses a backlight adaptive regulation device. The backlight adaptive regulation method and device are configured to set the backlight value of the display screen for displaying the video window area according to the brightness value of the pixel points in the third image captured in the current environment by using the camera so as to reduce the risk that the position of the display screen for displaying the video window is liable to aging.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of backlight adaptive regulation method and device.
Background technology
Along with the fast development of intelligent liquid-crystal display device technology, can either by intelligent liquid-crystal display device
Watch program, simultaneously, it is also possible to carry out video calling, very convenient, such as, by A liquid crystal display
Device and B intelligent liquid-crystal display device carry out video calling；Or, by C mobile terminal and A intelligence
Liquid crystal display carries out video calling.But, when intelligent liquid-crystal display device receives high brightness for a long time
Video pictures time, not only can the eyes of harm users, also can make the liquid crystal of intelligent liquid-crystal display device
Display screen easily occurs showing aging situation in the position of video window, decreases the aobvious of LCDs
Show the life-span.
Although existing intelligent liquid-crystal display device has the function being automatically adjusted backlight illumination, but it is only
It is according to ambient brightness self-adaptative adjustment screen intensity, to reach preferable display effect, can not solve
Above-mentioned receive high brightness for a long time when intelligent liquid-crystal display device video pictures time, impaired user eyes with
And make LCDs, in the position of display video window, aging problem easily occur.
Summary of the invention
Present invention is primarily targeted at a kind of backlight adaptive regulation method of offer and device, it is intended to solve
When intelligent liquid-crystal display device receives the video pictures of high brightness for a long time so that LCDs is in display
Easily there is aging problem in the position of video window.
For achieving the above object, a kind of backlight adaptive regulation method that the present invention provides, it is applied to TV
Backlight regulates, and described backlight adaptive regulation method comprises the following steps:
In the video mode, a frame picture is obtained at interval of preset time period；
According to current the first picture obtained and second picture acquired within current preset time period
Luminance difference and the number of described first picture white colour vegetarian refreshments, it is judged that whether described first picture meets
The backlight Automatic adjusument condition preset；
When described first picture meets described default backlight Automatic adjusument condition, obtain photographic head from
The brightness value of pixel in the 3rd picture that current environment catches；
The display video window region of display screen is set based on the brightness value of pixel in described 3rd picture
Backlight value.
Preferably, the first picture that described basis currently obtains is acquired with within current preset time period
The luminance difference of second picture and the number of described first picture white colour vegetarian refreshments, it is judged that described first
Whether picture meets the step of the backlight Automatic adjusument condition preset includes:
Calculate multiple luminance difference of described first picture luminance value and described second picture brightness value；
When luminance difference maximum in the plurality of luminance difference is less than the first preset value, calculate described the
The number of the white pixel point of one-row pixels point in one picture；
Number at described white pixel point accounts for the ratio of the number of entire row of pixels point more than the second preset value
Time, it is determined that described first picture meets described default backlight Automatic adjusument condition.
Preferably, the described first picture luminance value of described calculating and described second picture brightness value is multiple bright
The step of degree difference includes:
Obtain described first picture and the described second picture one-row pixels point in same position respectively, and really
The brightness value of each pixel in fixed described one-row pixels point；
Calculate a pixel and the one of described second picture in the one-row pixels point of described first picture respectively
In the luminance difference of brightness value of a pixel of same position in row pixel, and obtain the plurality of
Luminance difference.
Preferably, described the display of display screen is set based on the brightness value of pixel in described 3rd picture regards
Frequently the step of the backlight value of window area includes:
The backlight illumination of described 3rd picture is determined according to the brightness value of pixel in described 3rd picture；
According to the backlight illumination of described 3rd picture, set in the range of accommodation of the display backlight value determined
Put the backlight value in the display video window region of described display screen.
Preferably, described described 3rd picture is determined according to the brightness value of pixel in described 3rd picture
Also include before the step of backlight illumination:
Detect current environment brightness by described photographic head, and determine according to described current environment brightness described
The range of accommodation of display backlight value.
Additionally, for achieving the above object, the present invention also provides for a kind of backlight self-adaptive regulating, application
Regulating in television backlight, described backlight self-adaptive regulating includes:
First acquisition module, in the video mode, obtains a frame picture at interval of preset time period；
Judge module, for being obtained with within current preset time period according to current the first picture obtained
The luminance difference of the second picture taken and the number of described first picture white colour vegetarian refreshments, it is judged that described
Whether one picture meets the backlight Automatic adjusument condition preset；
Second acquisition module, for meeting described default backlight Automatic adjusument bar at described first picture
During part, obtain photographic head brightness value of pixel from the 3rd picture that current environment catches；
Module is set, for arranging the display of display screen based on the brightness value of pixel in described 3rd picture
The backlight value in video window region.
Preferably, described judge module includes:
First computing unit, for calculating described first picture luminance value and described second picture brightness value
Multiple luminance difference；
Second computing unit, pre-less than first for luminance difference maximum in the plurality of luminance difference
If during value, calculating the number of the white pixel point of one-row pixels point in described first picture；
Identifying unit, the ratio of the number for accounting for entire row of pixels point in the number of described white pixel point is big
When the second preset value, it is determined that described first picture meets described default backlight Automatic adjusument condition.
Preferably, described first computing unit is additionally operable to:
Obtain described first picture and the described second picture one-row pixels point in same position respectively, and really
The brightness value of each pixel in fixed described one-row pixels point；
Calculate a pixel and the one of described second picture in the one-row pixels point of described first picture respectively
In the luminance difference of brightness value of a pixel of same position in row pixel, and obtain the plurality of
Luminance difference.
Preferably, the described module that arranges includes:
Determine unit, for determining described 3rd picture according to the brightness value of pixel in described 3rd picture
Backlight illumination；
Unit is set, for the backlight illumination according to described 3rd picture, in the display backlight value determined
Range of accommodation in arrange described display screen display video window region backlight value.
Preferably, described backlight self-adaptive regulating also includes:
Detection module, for detecting current environment brightness by described photographic head, and works as front ring according to described
Border brightness determines the range of accommodation of described display backlight value.
The present invention, by the video mode, obtains a frame picture at interval of preset time period, according to currently
The luminance difference of the second picture that the first picture obtained is acquired with within current preset time period and
The number of the first picture white colour vegetarian refreshments, it is judged that whether the first picture meets the backlight Automatic adjusument preset
Condition, when the first picture meets default backlight Automatic adjusument condition, obtains photographic head from working as front ring
The brightness value of pixel in the 3rd picture that border catches, is arranged based on the brightness value of pixel in the 3rd picture
The backlight value in the display video window region of display screen.Owing to this intelligence will obtain at interval of Preset Time
One frame picture, calculates the bright of this first picture second picture acquired with within current preset time period
Degree difference, and determine the number of white pixel point in this first picture, to judge that this first picture is the fullest
The backlight Automatic adjusument condition that foot is preset, if meeting, it is determined that the video pictures that this intelligence system obtains
It is in high brightness state for a long time, controls photographic head and shoot a frame current environment picture, obtain and deserve front ring
The brightness value of pixel in the picture of border, arranges display according to the brightness value of pixel in this current environment picture
The backlight value in the display video window region of screen, hence in so that the display video window region of this display screen
Backlight value is dynamic, changes along with the change of brightness value of pixel of this current environment picture, from
And reduce display screen, in the position of display video window, aging risk easily occurs.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the first embodiment of backlight adaptive regulation method of the present invention；
Fig. 2 is the schematic flow sheet of the refinement step of step S20 in first embodiment shown in Fig. 1 of the present invention；
Fig. 3 is the schematic flow sheet of the refinement step of step S21 of backlight adaptive regulation method of the present invention；
Fig. 4 is the schematic flow sheet of the refinement step of step S40 in first embodiment shown in Fig. 1 of the present invention；
Fig. 5 is the schematic flow sheet of the second embodiment of backlight adaptive regulation method of the present invention；
Fig. 6 is the high-level schematic functional block diagram of the first embodiment of backlight self-adaptive regulating of the present invention；
Fig. 7 be backlight self-adaptive regulating of the present invention the second embodiment in the refinement function of judge module
Module diagram；
Fig. 8 be backlight self-adaptive regulating of the present invention the 3rd embodiment in the refinement function of module is set
Module diagram；
Fig. 9 is the high-level schematic functional block diagram of the 4th embodiment of backlight self-adaptive regulating of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
Based on the problems referred to above, the present invention provides a kind of method.
Schematic flow sheet with reference to the first embodiment that Fig. 1, Fig. 1 are backlight adaptive regulation method of the present invention.
In the present embodiment, described method includes:
Step S10, in the video mode, obtains a frame picture at interval of preset time period；
In the present embodiment, intelligent liquid-crystal display device includes computer, intelligent television, smart mobile phone.
Intelligent liquid-crystal display device receives the chat request instruction that other intelligent liquid-crystal display devices send over
After, open the Video chat window of local terminal, and open local terminal photographic head, in this intelligent liquid-crystal display device
Detecting Video chat application module by table look-up determine this intelligent liquid-crystal display device currently run bag for regarding
Frequently after chat application, then this intelligent liquid-crystal display device enters Video chat pattern.In the video mode,
Just obtain the frame picture that this intelligent liquid-crystal display device shows at interval of preset time period, this picture is for cutting
The video pictures taken.Such as, in the video mode, just obtain this intelligent liquid-crystal of a frame at interval of 5s to show
The video pictures that equipment shows.
It should be noted that under Video chat pattern, this intelligent liquid-crystal display device can obtain in 1s
Take 60 frame video pictures, then arbitrarily choose a frame as the picture used by calculating from this 60 frame video pictures.
Step S20, according to current the first picture obtained acquired with within current preset time period the
The luminance difference of two pictures and the number of the first picture white colour vegetarian refreshments, it is judged that whether the first picture meets
The backlight Automatic adjusument condition preset；
Step S30, when the first picture meets default backlight Automatic adjusument condition, obtain photographic head from
The brightness value of pixel in the 3rd picture that current environment catches；
Getting the first current picture and the second picture acquired with within current preset time period
After, obtain the brightness value of the pixel of this current environment picture and the brightness of the pixel of this first picture
Value, and obtain the white pixel point number of this current environment picture.Calculate this first picture brightness value and
With the luminance difference of the brightness value of this second picture, such as, at this intelligent liquid-crystal display device video to 10s
Time, obtain frame picture when being positioned at 10s and frame picture time acquisition is positioned at 5s, detect this position
The brightness value A of the frame picture when 10s and the brightness value B of frame picture when being positioned at 5s, meter
Calculate the luminance difference of A Yu B, when this luminance difference is less than or equal to the first preset value, it is judged that obtain
The ratio shared by number of white pixel point in this first picture taken, if white pixel in this first picture
The ratio shared by number of point is more than the second preset value, it is determined that this first picture meets default backlight certainly
Adapt to adjusting condition, i.e. determine that the video pictures that this intelligent liquid-crystal display device obtains is in highlighted for a long time
Degree state, the video image of the long-time exhibit high brilliance of display screen of this intelligent liquid-crystal display device.Really
After determining the video image of the long-time exhibit high brilliance of display screen of intelligent liquid-crystal display device, start this backlight
Automatic adjusument pattern, this intelligent liquid-crystal display device controls local terminal photographic head one current environment of shooting
Picture, obtains this photographic head brightness value of each pixel from the 3rd picture that current environment catches.
It is understood that this intelligent liquid-crystal display device will obtain a frame picture at interval of Preset Time,
Whether current the first picture obtained of detection meets the luminance difference of this first picture and second picture less than the
In one preset value and this first picture, the ratio shared by white pixel point is preset at default bar more than second
Part, if meeting, then continues to run with this backlight Automatic adjusument pattern；If being unsatisfactory for, then this intelligent liquid-crystal
The video image of the not long-time exhibit high brilliance of the display screen of display device, then close this backlight self adaptation and adjust
Joint pattern.
Step S40, arranges the display video window mouth region of display screen based on the brightness value of pixel in the 3rd picture
The backlight value in territory.
After starting this backlight Automatic adjusument pattern, then the display screen of this intelligent liquid-crystal display device is carried on the back
Brightness dynamically regulates, and the display backlight brightness of this intelligent liquid-crystal display device is dynamically adjusted
Joint function associates with the brightness value of the pixel in this current environment picture, i.e. according in current environment picture
The brightness value of pixel the backlight value in display video window region of display screen is set so that this intelligence liquid
The backlight value of crystal display device Video chat window area is come according to the change of current video chat environment constantly
Switching.
The present embodiment, by the video mode, obtains a frame picture at interval of preset time period, according to working as
The luminance difference of the second picture that the first picture of front acquisition is acquired with within current preset time period with
And first number of picture white colour vegetarian refreshments, it is judged that whether the first picture meets the backlight self adaptation preset is adjusted
Joint condition, when the first picture meets default backlight Automatic adjusument condition, obtains photographic head from currently
In the 3rd picture that environment catches, the brightness value of pixel, sets based on the brightness value of pixel in the 3rd picture
Put the backlight value in the display video window region of display screen.Owing to this intelligence will obtain at interval of Preset Time
Take a frame picture, calculate this first picture and second picture acquired within current preset time period
Luminance difference, and determine the number of white pixel point in this first picture, whether to judge this first picture
Meet the backlight Automatic adjusument condition preset, if meeting, it is determined that the video figure that this intelligence system obtains
Sheet is in high brightness state for a long time, controls photographic head and shoots a frame current environment picture, obtains this current
The brightness value of pixel in environment picture, arranges aobvious according to the brightness value of pixel in this current environment picture
The backlight value in the display video window region of display screen, hence in so that the display video window region of this display screen
Backlight value be dynamic, change along with the change of brightness value of pixel of this current environment picture,
Thus reduce display screen, in the position of display video window, aging risk easily occurs.
Further, refer to Fig. 2, for the stream of the refinement step of step S20 in first embodiment of the invention
Journey schematic diagram, the refinement step of this step S20 includes:
Step S21, calculates multiple luminance difference of the brightness value of the first picture and the brightness value of second picture；
In the present embodiment, this intelligent liquid-crystal display device detects this first picture and pixel in second picture
Point, (blue to obtain Rgain (red pixel) in this pixel, Ggain (green pixel), Bgain
Color pixel) three luminance components, i.e. picture luminance value, the picture luminance value currently obtained is deducted distance
The picture luminance value obtained in current preset time period, obtains multiple luminance difference.
Step S22, when luminance difference maximum in multiple luminance difference is less than the first preset value, calculates the
The number of the white pixel point of one-row pixels point in one picture；
After calculating this first picture luminance value multiple luminance difference with this second picture brightness value, intelligence
Luminance difference maximum in the plurality of luminance difference can be obtained by liquid crystal display, it is judged that the brightness of this maximum
Whether difference is less than preset value, and such as, the picture luminance value preset is 255, then judge the luminance difference of maximum
Whether value is less than 1/10th of the picture luminance value preset, if the luminance difference of this maximum is less than preset value,
Then determine that current video pictures is identical with video pictures within current preset time period, i.e. this video is drawn
The face length time is unchanged, then scan this picture currently obtained, and calculates in this picture in any a line pixel
The number of white pixel point.Such as, the current picture obtained of scanning, detects picture in the 20th row of this picture
Rgain (red pixel) value of vegetarian refreshments, Ggain (green pixel) value, Bgain (blue pixel)
Value is all the point of 255, calculates the R value of pixel, G-value and B value in the 20th row of this picture and is all
The number of the point of 255.
Step S23, the number at white pixel point accounts for the ratio of the number of entire row of pixels point and presets more than second
During value, it is determined that the first picture meets default backlight Automatic adjusument condition.
In the picture calculating current acquisition after the number of the white pixel point of one-row pixels point, statistics should
The number of the white pixel point of row pixel accounts for the ratio of the number of this row pixel, in this ratio more than pre-
If value 3 times time, such as, the 20th row of this picture has 1920 pixels, wherein white pixel
Point has 700, then the ratio shared by white pixel point that can count in this row is more than 30%, it is determined that
The brightness of current video picture meets default backlight Automatic adjusument condition, and i.e. current video picture is bright
Spend the highest.
The present embodiment is by multiple luminance differences of the brightness value of the brightness value Yu second picture that calculate the first picture
Value, when luminance difference maximum in multiple luminance difference is less than the first preset value, calculates in the first picture
The number of the white pixel point of one-row pixels point, the number at white pixel point accounts for the number of entire row of pixels point
Ratio more than the second preset value time, it is determined that the first picture meets default backlight Automatic adjusument condition,
Make this intelligent liquid-crystal display device after detecting that video pictures is in high brightness state for a long time, start
This backlight Automatic adjusument pattern regulates the backlight value in the display video window region of display screen.
Further, refer to Fig. 3, for the schematic flow sheet of the refinement step of step S21 of the present invention, be somebody's turn to do
The refinement step of step S21 includes:
Step S211, obtains the first picture and the second picture one-row pixels point in same position respectively, and
Determine the brightness value of each pixel in one-row pixels point；
In the present embodiment, the current picture obtained of this intelligent liquid-crystal display device scanning, obtain the first figure
Any a line pixel in sheet, meanwhile, scans second picture, obtains the identical bits of this two frames picture respectively
The one-row pixels point put, and determine the R value of pixel, G-value and B value in this two row pixel respectively.
Such as, the R value of the 20th row pixel, G-value and B value in frame picture when being positioned at 10s is obtained
And obtain R value, G-value and the B value of frame picture the 20th row pixel when being positioned at 5s.
Step S212, calculates a pixel and second picture in the one-row pixels point of the first picture respectively
In the luminance difference of brightness value of a pixel of same position in one-row pixels point, and obtain multiple bright
Degree difference.
In determining this two row pixel respectively after the brightness value of each pixel, obtain the first picture respectively
The brightness value of each pixel and the brightness of each pixel in one-row pixels point in second picture in one-row pixels point
A certain brightness value in value, deducts second picture by a certain brightness value of a certain pixel of this first picture
The same brightness value of the pixel of same position, to obtain luminance difference.Such as, obtain respectively and be positioned at the
Frame picture during 10s and the R value of each pixel in the 20th row in frame picture when being positioned at 5s, will
The R value of each pixel and frame when being positioned at 5s in 20th row in frame picture when being positioned at 10s
In picture, in the 20th row, the R value of each pixel is subtracted each other one by one, to obtain the luminance difference of each pixel.
It should be noted that owing to this video pictures is the most unchanged, this luminance difference in theory is equal to 0.
The present embodiment passes through the one-row pixels point obtaining the first picture and second picture respectively in same position,
And determine the brightness value of each pixel in one-row pixels point, and calculate the one-row pixels point of the first picture respectively
In in pixel and the one-row pixels point of second picture at the brightness value of a pixel of same position
Luminance difference, obtain multiple luminance difference so that this intelligent liquid-crystal display device can determine works as forward sight
Frequency chat is in same state the most for a long time.
Further, refer to Fig. 4, for the stream of the refinement step of step S40 in first embodiment of the invention
Journey schematic diagram, the refinement step of this step S40 includes:
Step S41, determines the backlight illumination of the 3rd picture according to the brightness value of pixel in the 3rd picture；
In the present embodiment, intelligent liquid-crystal display device shoots one by local terminal photographic head from current environment
The 3rd picture, obtains the brightness value of pixel in the 3rd picture, with a certain class in the 3rd picture
The brightness value of the pixel of type, as brightness reference value, is defined as the 3rd picture according to this brightness reference value
Backlight illumination.Such as, intelligent liquid-crystal display device shoots one by local terminal photographic head from current environment
Environment picture, obtains the R value of pixel, G-value and the B value in the 3rd picture, then, with this figure
In sheet, the R value of gray pixels point, G-value and B value are as brightness reference value, this brightness reference value are determined
Backlight illumination R value, G-value and B value for the 3rd picture.
Step S42, according to the backlight illumination of the 3rd picture, in the range of accommodation of the display backlight value determined
The backlight value in the display video window region of display screen is inside set.
After the backlight illumination determining the 3rd picture according to the brightness value of the pixel in the 3rd picture,
This intelligent liquid-crystal display device is according to the backlight illumination of the 3rd picture, in fixed display backlight value
Range of accommodation in arrange display screen display video window region backlight value.Wherein, when this photographic head
Before when having shelter, the brightness value of the pixel in the 3rd picture is bigger, when not having before this photographic head
During shelter, the brightness value of the pixel in the 3rd picture is smaller.
Such as, by the R value of gray pixels point in this picture be 206, G-value be 206 and B values be 206
As brightness reference value, then this intelligent liquid-crystal display device sets according to the R value of gray pixels point in this picture
The R backlight value in the display video window region putting this display screen is 206, according to gray pixels point in picture
G-value arrange this display screen display video window region G backlight value be 206, mellow lime according to picture
The B backlight value in the display video window region that the B value of colour vegetarian refreshments arranges this display screen is 206.
Or, after the brightness value of Video chat receiving terminal pixel in getting the 3rd picture, to
This Video chat originating end sends the request instruction of the backlight illumination of amendment picture, this Video chat originating end
The brightness value of the pixel in the 3rd picture is got according to this Video chat receiving terminal, amendment picture
Backlight illumination.
According to the brightness value of pixel in the 3rd picture, the present embodiment is by determining that the backlight of the 3rd picture is bright
Degree, according to the backlight illumination of the 3rd picture, arranges aobvious in the range of accommodation of the display backlight value determined
The backlight value in the display video window region of display screen so that this intelligent liquid-crystal display device can be based on currently
The backlight illumination of environment picture adjusts the backlight value in the display video window region of this display screen, to reach to keep away
Exempt from display screen, in the position of display video window, aging phenomenon easily occurs, and can reach preferably to show
Effect.
Further, refer to Fig. 5, for the second enforcement of the backlight adaptive regulation method that the present invention proposes
Example, in the present embodiment, before above-mentioned steps S41, also includes:
Step S50, detects current environment brightness by photographic head, and determines display according to current environment brightness
The range of accommodation of screen backlight value.
In the present embodiment, intelligent liquid-crystal display device detects current environment brightness by photographic head, with really
It is scheduled under current environment brightness the range of accommodation of this intelligent liquid-crystal display device display backlight value, and obtains
The backlight value of display screen under the present circumstances.Wherein the range of accommodation of this backlight value include [0,255] and
[0,180], this such as, intelligent liquid-crystal display device by photographic head detection be currently under daylight lamp environment,
Then determine that the range of accommodation of this intelligent liquid-crystal display device display backlight value is under daylight lamp environment
[0,255], and detect that intelligent liquid-crystal display device display backlight value is 130 under the present circumstances.
The present embodiment detects current environment brightness by described photographic head, and according to described current environment brightness
Determine the range of accommodation of described display backlight value so that the display backlight of this intelligent liquid-crystal display device
Value dynamically can adjust in default range of accommodation.
The present invention further provides a kind of backlight self-adaptive regulating.
Functional module with reference to the first embodiment that Fig. 6, Fig. 6 are backlight self-adaptive regulating of the present invention is shown
It is intended to.
In the present embodiment, described device includes: the first acquisition module 10, judge module 20, second obtain
Delivery block 30, module 40 is set.
Described first acquisition module 10, in the video mode, obtains a frame at interval of preset time period
Picture；
In the present embodiment, intelligent liquid-crystal display device includes computer, intelligent television, smart mobile phone,
And the backlight self-adaptive regulating in this intelligent liquid-crystal display device has backlight Automatic adjusument effect.
Intelligent liquid-crystal display device receives the chat request instruction that other intelligent liquid-crystal display devices send over
After, open the Video chat window of local terminal, and open local terminal photographic head, in this intelligent liquid-crystal display device
Detecting Video chat application module by table look-up determine this intelligent liquid-crystal display device currently run bag for regarding
Frequently after chat application, then this intelligent liquid-crystal display device enters Video chat pattern.In the video mode,
The first acquisition module 10 in backlight self-adaptive regulating just obtains this intelligence liquid at interval of preset time period
The frame picture that crystal display device shows, this picture is the video pictures intercepted.Such as, at video mode
Under, the video pictures that this intelligent liquid-crystal display device of a frame shows just is obtained at interval of 5s.
It should be noted that under Video chat pattern, first in this backlight self-adaptive regulating is obtained
Delivery block 10 can obtain 60 frame video pictures in 1s, then arbitrarily choose one from this 60 frame video pictures
Frame is as the picture used by calculating.
Described judge module 20, for according to current the first picture obtained and apart from current preset time period
The luminance difference of the second picture acquired in and the number of the first picture white colour vegetarian refreshments, it is judged that first
Whether picture meets the backlight Automatic adjusument condition preset；
Described second acquisition module 30, for meeting default backlight Automatic adjusument condition at the first picture
Time, obtain photographic head brightness value of pixel from the 3rd picture that current environment catches；
Getting the first current picture and the second picture acquired with within current preset time period
After, obtain the brightness value of the pixel of this current environment picture and the brightness of the pixel of this first picture
Value, and obtain the white pixel point number of this current environment picture.Then needing to call judge module 20 calculating should
The brightness value of the first picture and the luminance difference of the brightness value with this second picture, such as, at this intelligence liquid
When crystal display device video is to 10s, obtain frame picture when being positioned at 10s and time acquisition is positioned at 5s
A frame picture, a when detecting the brightness value A of frame picture when this is positioned at 10s and be positioned at 5s
The brightness value B of frame picture, calculates the luminance difference of A Yu B, determines this luminance difference at judge module 20
During less than or equal to the first preset value, it is judged that the number of white pixel point in this first picture obtained
Shared ratio, if the ratio shared by number of white pixel point is more than the second preset value in this first picture,
Then judge module 20 determines that this first picture meets default backlight Automatic adjusument condition, i.e. determines this intelligence
Can be in high brightness state for a long time by the video pictures that obtains of liquid crystal display, this intelligent liquid-crystal shows and sets
The video image of the long-time exhibit high brilliance of standby display screen.Determine that intelligent liquid-crystal shows at judge module 20
After the video image of the long-time exhibit high brilliance of display screen of equipment, start this backlight self-adaptive regulating
In backlight Automatic adjusument pattern, the second acquisition module 30 in this backlight self-adaptive regulating controls
The picture of local terminal photographic head one current environment of shooting, obtain that this photographic head catches from current environment the 3rd
The brightness value of each pixel in picture.
It is understood that this first acquisition module 10 will obtain a frame picture at interval of Preset Time,
Whether current the first picture obtained of detection meets the luminance difference of this first picture and second picture less than the
In one preset value and this first picture, the ratio shared by white pixel point is preset at default bar more than second
Part, if meeting, then this backlight self-adaptive regulating continues to run with this backlight Automatic adjusument pattern；If
It is unsatisfactory for, it is determined that the video figure of the not long-time exhibit high brilliance of the display screen of this intelligent liquid-crystal display device
Picture, then this backlight self-adaptive regulating closes this backlight Automatic adjusument pattern.
Described module 40 is set, for arranging the aobvious of display screen based on the brightness value of pixel in the 3rd picture
Show the backlight value in video window region.
After starting this backlight Automatic adjusument pattern, then module 40 is set to this intelligent liquid-crystal display device
Display backlight brightness dynamically regulate, by the display backlight brightness of this intelligent liquid-crystal display device
Carry out dynamic regulatory function to associate with the brightness value of the pixel in this current environment picture, i.e. according to current
The brightness value of the pixel in environment picture arranges the backlight value in the display video window region of display screen, makes
Obtain the backlight value of this intelligent liquid-crystal display device Video chat window area constantly according to current video chat ring
The change in border switches.
The present embodiment is by the video mode, and the first acquisition module 10 obtains one at interval of preset time period
Frame picture, it is judged that module 20 is obtained with within current preset time period according to current the first picture obtained
The luminance difference of the second picture taken and the number of the first picture white colour vegetarian refreshments, it is judged that the first picture is
The no satisfied backlight Automatic adjusument condition preset, the second acquisition module 30 meets default at the first picture
During backlight Automatic adjusument condition, obtain photographic head pixel from the 3rd picture that current environment catches
Brightness value, arranges module 40 and arranges the display video of display screen based on the brightness value of pixel in the 3rd picture
The backlight value of window area.Owing to this intelligence will obtain a frame picture at interval of Preset Time, calculating should
First picture and the luminance difference of second picture acquired within current preset time period, and determine this
The number of white pixel point in first picture, adaptive to judge whether this first picture meets the backlight preset
Answer adjusting condition, if meeting, it is determined that the video pictures that this intelligence system obtains is in high brightness for a long time
State, controls photographic head and shoots a frame current environment picture, obtain pixel in this current environment picture
Brightness value, arranges the display video window of display screen according to the brightness value of pixel in this current environment picture
The backlight value in region, hence in so that the backlight value in the display video window region of this display screen is dynamic,
Change along with the change of brightness value of pixel of this current environment picture, thus reduce display screen and exist
Easily there is aging risk in the position of display video window.
Further, based on described first embodiment, the of backlight self-adaptive regulating of the present invention is proposed
Two embodiments, in the present embodiment, with reference to Fig. 7, described determination module 20 include the first computing unit 21,
Second computing unit 22, identifying unit 23.
Described first computing unit 21, the brightness value of brightness value with second picture for calculating the first picture
Multiple luminance difference；
In the present embodiment, the first computing unit 21 in this backlight self-adaptive regulating detect this first
Picture and pixel in second picture, to obtain Rgain (red pixel), the Ggain in this pixel
(green pixel), three luminance components of Bgain (blue pixel), i.e. picture luminance value, will currently obtain
The picture luminance value taken deducts the picture luminance value obtained within current preset time period, obtains multiple bright
Degree difference.
Described second computing unit 22, for luminance difference maximum in multiple luminance difference less than first
During preset value, calculate the number of the white pixel point of one-row pixels point in the first picture；
The multiple of this first picture luminance value and this second picture brightness value are calculated at the first computing module 21
After luminance difference, the second computing unit 22 obtains luminance difference maximum in the plurality of luminance difference, it is judged that
Whether the luminance difference of this maximum is less than preset value, and such as, the picture luminance value preset is 255, then judge
Whether maximum luminance difference is less than 1/10th of the picture luminance value preset, if the luminance difference of this maximum
Value is less than preset value, it is determined that current video pictures and video pictures phase within current preset time period
With, i.e. this video pictures is the most unchanged, then scan this picture currently obtained, calculate in this picture and appoint
The number of white pixel point in meaning one-row pixels point.Such as, the current picture obtained of scanning, detects this figure
Rgain (red pixel) value of pixel, Ggain (green pixel) value, Bgain in 20th row of sheet
(blue pixel) value is all the point of 255, calculates the R value of pixel, G in the 20th row of this picture
Value and B value are all the number of the point of 255.
Described identifying unit 23, for accounting for the ratio of the number of entire row of pixels point in the number of white pixel point
During more than the second preset value, it is determined that the first picture meets default backlight Automatic adjusument condition.
The white pixel point of one-row pixels point in the second computing module 22 calculates the picture of current acquisition
After number, it is determined that the number of the white pixel point that unit 23 adds up this row pixel accounts for the individual of this row pixel
The ratio of number, when this ratio is more than 3 times of preset value, such as, the 20th row of this picture has 1920
Individual pixel, wherein white pixel point has 700, then can count in this row shared by white pixel point
Ratio more than 30%, then change the original sentence to cell 23 and determine that the brightness of current video picture meets default backlight
The brightness of Automatic adjusument condition, i.e. current video picture is the highest.
Described first computing unit 21, is additionally operable to obtain the first picture respectively with second picture in same position
One-row pixels point, and determine the brightness value of each pixel in one-row pixels point；
In the present embodiment, this first computing unit 21 scans the picture of current acquisition, obtains the first picture
In any a line pixel, meanwhile, scan second picture, obtain the same position of this two frames picture respectively
One-row pixels point, and determine the R value of pixel, G-value and B value in this two row pixel respectively.Example
As, obtain in frame picture when being positioned at 10s the R value of the 20th row pixel, G-value and B value and
Obtain R value, G-value and the B value of frame picture the 20th row pixel when being positioned at 5s.
Described first computing unit 21, is additionally operable to calculate respectively a picture in the one-row pixels point of the first picture
In the luminance difference of brightness value of a pixel of same position in the one-row pixels point of vegetarian refreshments and second picture
Value, and obtain multiple luminance difference.
In the first computing unit 21 determines this two row pixel respectively after the brightness value of each pixel, this is years old
One computing unit 21 obtains brightness value and second figure of each pixel in the one-row pixels point of the first picture respectively
A certain brightness value in the brightness value of each pixel in one-row pixels point in sheet, a certain by this first picture
The a certain brightness value of pixel deducts the same brightness value of the pixel of second picture same position, to obtain
Luminance difference.Such as, frame picture when being positioned at 10s is obtained respectively and frame figure when being positioned at 5s
The R value of each pixel in 20th row in sheet, each in the 20th row in frame picture when will be located in 10s
The R value of pixel and the R value phase one by one of each pixel in the 20th row in frame picture when being positioned at 5s
Subtract, to obtain the luminance difference of each pixel.
It should be noted that owing to this video pictures is the most unchanged, this luminance difference in theory is equal to 0.
The present embodiment is by multiple luminance differences of the brightness value of the brightness value Yu second picture that calculate the first picture
Value, when luminance difference maximum in multiple luminance difference is less than the first preset value, calculates in the first picture
The number of the white pixel point of one-row pixels point, the number at white pixel point accounts for the number of entire row of pixels point
Ratio more than the second preset value time, it is determined that the first picture meets default backlight Automatic adjusument condition,
Make this intelligent liquid-crystal display device after detecting that video pictures is in high brightness state for a long time, start
This backlight Automatic adjusument pattern regulates the backlight value in the display video window region of display screen.
Further, based on described first embodiment, the of backlight self-adaptive regulating of the present invention is proposed
Three embodiments, in the present embodiment, with reference to Fig. 8, the described module 40 that arranges includes determining unit 41, arranging
Unit 42.
Described determine unit 41, for determining the 3rd picture according to the brightness value of pixel in the 3rd picture
Backlight illumination；
In the present embodiment, intelligent liquid-crystal display device shoots one by local terminal photographic head from current environment
Opening the 3rd picture, be determined by unit 41 and obtain the brightness value of the pixel in the 3rd picture, this determines
Unit 41 is so that in the 3rd picture, the brightness value of the pixel of a certain type is as brightness reference value, according to this
Brightness reference value is defined as the backlight illumination of the 3rd picture.Such as, intelligent liquid-crystal display device passes through local terminal
Photographic head shoots an environment picture from current environment, is determined by unit 41 and obtains in the 3rd picture
The R value of pixel, G-value and B value, then, this determines that unit 41 is with gray pixels in this picture
This brightness reference value, as brightness reference value, is defined as the 3rd picture by R value, G-value and the B value of point
Backlight illumination R value, G-value and B value.
Described unit 42 is set, for the backlight illumination according to the 3rd picture, in the display backlight determined
The backlight value in the display video window region of display screen is set in the range of accommodation of value.
Determining that unit 41 determines the back of the body of the 3rd picture according to the brightness value of the pixel in the 3rd picture
After brightness, this arranges the unit 42 backlight illumination according to the 3rd picture, carries on the back at fixed display screen
The backlight value in the display video window region of display screen is set in the range of accommodation of light value.Wherein, take the photograph when this
During as having shelter before head, the brightness value of the pixel in the 3rd picture is bigger, when before this photographic head
When not having shelter, the brightness value of the pixel in the 3rd picture is smaller.
Such as, by the R value of gray pixels point in this picture be 206, G-value be 206 and B values be 206
As brightness reference value, then unit 42 is set this liquid crystal is set according to the R value of gray pixels point in this picture
The R backlight value in the display video window region of display device display screen is 206, according to the mellow lime colour of picture
The G backlight value in the display video window region that the G-value of vegetarian refreshments arranges this display screen is 206, according to picture
The B backlight value in the display video window region that the B value of middle gray pixels point arranges this display screen is 206.
Or, after the brightness value of Video chat receiving terminal pixel in getting the 3rd picture, to
This Video chat originating end sends the request instruction of the backlight illumination of amendment picture, this Video chat originating end
The brightness value of the pixel in the 3rd picture is got according to this Video chat receiving terminal, amendment picture
Backlight illumination.
According to the brightness value of pixel in the 3rd picture, the present embodiment is by determining that the backlight of the 3rd picture is bright
Degree, according to the backlight illumination of the 3rd picture, arranges aobvious in the range of accommodation of the display backlight value determined
The backlight value in the display video window region of display screen so that this intelligent liquid-crystal display device can be based on currently
The backlight illumination of environment picture adjusts the backlight value in the display video window region of this display screen, to reach to keep away
Exempt from display screen, in the position of display video window, aging phenomenon easily occurs, and can reach preferably to show
Effect.
Further, based on described first embodiment, the of backlight self-adaptive regulating of the present invention is proposed
Four embodiments, in the present embodiment, with reference to Fig. 9, described backlight self-adaptive regulating also includes: detection mould
Block 50.
Described detection module 50, for detecting current environment brightness by photographic head, and according to current environment
Brightness determines the range of accommodation of display backlight value.
In the present embodiment, detection module 50 works as front ring by the photographic head detection of intelligent liquid-crystal display device
Border brightness, to determine the regulation of this intelligent liquid-crystal display device display backlight value under current environment brightness
Scope, and obtain the backlight value of display screen under the present circumstances.Wherein the range of accommodation of this backlight value includes
[0,255] and [0,180], this such as, detection module 50 is detected by the photographic head of intelligent liquid-crystal display device
It is currently under daylight lamp environment, it is determined that this intelligent liquid-crystal display device display screen under daylight lamp environment
The range of accommodation of backlight value is [0,255], and detects that intelligent liquid-crystal display device shows under the present circumstances
Screen backlight value is 130.
The present embodiment detects current environment brightness by described photographic head, and according to described current environment brightness
Determine the range of accommodation of described display backlight value so that the display backlight of this intelligent liquid-crystal display device
Value dynamically can adjust in default range of accommodation.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every
Utilize equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, or directly or
Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a backlight adaptive regulation method, is applied to television backlight regulation, it is characterised in that described
Backlight adaptive regulation method comprises the following steps:
In the video mode, a frame picture is obtained at interval of preset time period；
According to current the first picture obtained and second picture acquired within current preset time period
Luminance difference and the number of described first picture white colour vegetarian refreshments, it is judged that whether described first picture meets
The backlight Automatic adjusument condition preset；
When described first picture meets described default backlight Automatic adjusument condition, obtain photographic head from
The brightness value of pixel in the 3rd picture that current environment catches；
The display video window region of display screen is set based on the brightness value of pixel in described 3rd picture
Backlight value.
2. backlight adaptive regulation method as claimed in claim 1, it is characterised in that described basis is worked as
The luminance difference of the second picture that the first picture of front acquisition is acquired with within current preset time period with
And the number of described first picture white colour vegetarian refreshments, it is judged that whether described first picture meets the backlight preset
The step of Automatic adjusument condition includes:
Calculate multiple luminance difference of the brightness value of described first picture and the brightness value of described second picture；
When luminance difference maximum in the plurality of luminance difference is less than the first preset value, calculate described the
The number of the white pixel point of one-row pixels point in one picture；
Number at described white pixel point accounts for the ratio of the number of entire row of pixels point more than the second preset value
Time, it is determined that described first picture meets described default backlight Automatic adjusument condition.
3. backlight adaptive regulation method as claimed in claim 2, it is characterised in that described calculating institute
The step stating the first picture luminance value and multiple luminance difference of described second picture brightness value includes:
Obtain described first picture and the described second picture one-row pixels point in same position respectively, and really
The brightness value of each pixel in fixed described one-row pixels point；
Calculate a pixel and the one of described second picture in the one-row pixels point of described first picture respectively
In the luminance difference of brightness value of a pixel of same position in row pixel, and obtain the plurality of
Luminance difference.
4. backlight adaptive regulation method as claimed in claim 1, it is characterised in that described based on institute
State the step that the brightness value of pixel in the 3rd picture arranges the backlight value showing video window region of display screen
Suddenly include:
The backlight illumination of described 3rd picture is determined according to the brightness value of pixel in described 3rd picture；
According to the backlight illumination of described 3rd picture, set in the range of accommodation of the display backlight value determined
Put the backlight value in the display video window region of described display screen.
5. backlight adaptive regulation method as claimed in claim 4, it is characterised in that described according to institute
Also wrap before stating the step that the brightness value of pixel in the 3rd picture determines the backlight illumination of described 3rd picture
Include:
Detect current environment brightness by described photographic head, and determine according to described current environment brightness described
The range of accommodation of display backlight value.
6. a backlight self-adaptive regulating, is applied to television backlight regulation, it is characterised in that described
Backlight self-adaptive regulating includes:
First acquisition module, in the video mode, obtains a frame picture at interval of preset time period；
Judge module, for being obtained with within current preset time period according to current the first picture obtained
The luminance difference of the second picture taken and the number of described first picture white colour vegetarian refreshments, it is judged that described
Whether one picture meets the backlight Automatic adjusument condition preset；
Second acquisition module, for meeting described default backlight Automatic adjusument bar at described first picture
During part, obtain photographic head brightness value of pixel from the 3rd picture that current environment catches；
Module is set, for arranging the display of display screen based on the brightness value of pixel in described 3rd picture
The backlight value in video window region.
7. backlight self-adaptive regulating as claimed in claim 6, it is characterised in that described judgement mould
Block includes:
First computing unit, for calculating described first picture luminance value and described second picture brightness value
Multiple luminance difference；
Second computing unit, pre-less than first for luminance difference maximum in the plurality of luminance difference
If during value, calculating the number of the white pixel point of one-row pixels point in described first picture；
Identifying unit, the ratio of the number for accounting for entire row of pixels point in the number of described white pixel point is big
When the second preset value, it is determined that described first picture meets described default backlight Automatic adjusument condition.
8. backlight self-adaptive regulating as claimed in claim 7, it is characterised in that described first meter
Calculation unit is additionally operable to:
Obtain described first picture and the described second picture one-row pixels point in same position respectively, and really
The brightness value of each pixel in fixed described one-row pixels point；
Calculate a pixel and the one of described second picture in the one-row pixels point of described first picture respectively
In the luminance difference of brightness value of a pixel of same position in row pixel, and obtain the plurality of
Luminance difference.
9. backlight self-adaptive regulating as claimed in claim 6, it is characterised in that described mould is set
Block includes:
Determine unit, for determining described 3rd picture according to the brightness value of pixel in described 3rd picture
Backlight illumination；
Unit is set, for the backlight illumination according to described 3rd picture, in the display backlight value determined
Range of accommodation in arrange described display screen display video window region backlight value.
10. backlight self-adaptive regulating as claimed in claim 9, it is characterised in that described backlight
Self-adaptive regulating also includes:
Detection module, for detecting current environment brightness by described photographic head, and works as front ring according to described
Border brightness determines the range of accommodation of described display backlight value.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293245.7A CN105916056B (en) | 2016-05-04 | 2016-05-04 | Backlight adaptive regulation method and device |
| PCT/CN2016/096846 WO2017190452A1 (en) | 2016-05-04 | 2016-08-26 | Backlight self-adaptive regulation method and apparatus |
| EP16900974.3A EP3454565B1 (en) | 2016-05-04 | 2016-08-26 | Backlight self-adaptive regulation method and apparatus |
| US16/310,808 US10726793B2 (en) | 2016-05-04 | 2016-08-26 | Backlight self-adaptive adjustment method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293245.7A CN105916056B (en) | 2016-05-04 | 2016-05-04 | Backlight adaptive regulation method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105916056A true CN105916056A (en) | 2016-08-31 |
| CN105916056B CN105916056B (en) | 2018-11-23 |
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| CN201610293245.7A Active CN105916056B (en) | 2016-05-04 | 2016-05-04 | Backlight adaptive regulation method and device |
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| US (1) | US10726793B2 (en) |
| EP (1) | EP3454565B1 (en) |
| CN (1) | CN105916056B (en) |
| WO (1) | WO2017190452A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107796512A (en) * | 2016-08-30 | 2018-03-13 | 三星电子株式会社 | The method of electronic equipment and operation electronic equipment with display and sensor |
| CN110225177A (en) * | 2018-03-01 | 2019-09-10 | 优酷网络技术（北京）有限公司 | A kind of interface adjusting method, computer storage medium and terminal device |
| CN114363448A (en) * | 2020-09-29 | 2022-04-15 | 北京小米移动软件有限公司 | Brightness control method and device for small screen window, terminal and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289279B (en) * | 2020-11-05 | 2022-04-12 | Oppo广东移动通信有限公司 | Screen brightness adjusting method and device, storage medium and electronic equipment |
| CN114697591B (en) * | 2020-12-29 | 2024-09-20 | 深圳Tcl新技术有限公司 | Display picture adjusting method and device, storage medium and terminal equipment |
| CN114023274B (en) * | 2021-11-26 | 2023-07-25 | 惠州视维新技术有限公司 | Backlight adjustment method, device, display equipment and storage medium |
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- 2016-08-26 US US16/310,808 patent/US10726793B2/en active Active
- 2016-08-26 WO PCT/CN2016/096846 patent/WO2017190452A1/en unknown
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Also Published As
| Publication number | Publication date |
|---|---|
| US20190147808A1 (en) | 2019-05-16 |
| EP3454565A1 (en) | 2019-03-13 |
| EP3454565B1 (en) | 2021-01-13 |
| CN105916056B (en) | 2018-11-23 |
| US10726793B2 (en) | 2020-07-28 |
| EP3454565A4 (en) | 2019-12-18 |
| WO2017190452A1 (en) | 2017-11-09 |
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